Weft feeler mechanism for looms.



s. s. JACKSON. WEFT FEELER MECHANISM FOR LOOMS. APPLICATION FILED MAY 1.2, 1-9l5- RENEWED AUG. 15. I918.

Patented Apr. 15, 1919.

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I WEFT FEELER MECHANISM FOR LOOMS. I APPLICATION FILED MAY 12, L916- RENEWEQ AUG. 15,1918. 1,300,971 Patented Apr. 1-5, 1919.

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S. S. JACKSON.

WEFT FEELER MECHANISM FOR LOOMS.

APPLICATION FILED MAY12. 191.5. RENEWED AUG. 15,1918.

Patented Apr. 15, 1919.

6 SHEETSSHEET 4.

fnvenzfor MM fliiorneg ZUZ'Z 7265566 S. S. JACK-SON.

WEFT FEELER MECHANISM FOR LOOMS. APPLICIATION FILED MAY 12, 19146. RENEWED, AUG. 15.1918. 1,300,971.

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S. S. JACKSON.

WEFT FEEL ER MECHANISM FOR LOOIVIS. QAPPUCAHON FILED MAY 12. 1916. RENEWED AUG. 15,1918.

1 ,300,971 Patented Apr. 15, 1919 I 6 sHEETs-sHEET 6.

In 7/672 for W UL/ ogtzfiarnzg SIMEON S. JACKSON, 013 BOSTON, MASSACHUSETTS, ASSIGNOR TO THE STAFFORD COMPANY, OF READVILLE, MASSACHUSETTS, A CORPORATION OF NEW JERSEY.

WEFT FEELEB MECHANISM FOR, LOOMS.

Specification of Letters Patent. Patented Apr. 15, 1919.

Application filed May 12 1916, Serial No. 97,189. Renewed August 15, 1918. Serial No. 250,077.

To all whom it may concern 7 Be it known that I, SIMEoN S. JACKSON, a subject of Great Britain, residing at Boston, in the county of Suffolk, State of Massachusetts, have invented a certainnew and useful Improvement in Weft Feeler Mechanism for Looms, of which the following is a specification, reference being had therein to the accompanying drawings. V,

The invention has relation, in general ,;to the depletion-detecting mechanisms, commonly termed feeler mechanisms, which are employed in looms for the purpose of forestalling complete exhaustion of thesupply of weft 0r filling contained in the working shuttle upon the lay of a loom. These mechanisms are contrived to indicate, or call, or initiate, as it variously is termed, a

' change in the operation of the loom, upon detecting that the progressive depletion of the said supply has reached a stage decided upon as a minimum. The change involves in some cases automatic replenishing of the working supply of weft or filling without stoppage of the loom; in other cases, it involves stoppage of the loom without automatic replenishment; in still others it involves stoppage of the loom, with automatic replenishment during the stoppage, followed by automatic restarting of the loom.

The invention is in the nature of a specific embodiment of the broad principles set forth in my application for U. S. Letters Patent filed April 29, 1916, Serial No. 94,334. In the present instance, as also in the said application, the said broad principles are embodied in weft or filling feeler devices comprising a primary contact-member constituted by a feeler-member or finger that is moved by the pressure of the shuttle-contained weft or fillingsupply, at least. during the earlier stages of said'supply; asecondary, assisting or coadjutor, contact-member constituted by a second feeler-member or finger that is given by the pressure of the said weft or fillingsupply a' movement, differentially correlated with that of the primary contact-member; a controller-restthat is actuated through the movement of the said primary contactmember, and in addition controlled by the said secondary or 00- adjutor contact-member and arranged to coact therewith in measuring the differential of the vpositions given to the two contactmembers; and a controller for the devices that call a change in the operation of the loom. As in the application aforesaid, I combine with these elements, in-accordance with the broad principles aforesaid, governingmeanswhich, so long as the primary contact-member is given by the pressure of the shuttle-contents a movement which exceeds a certain amount, operates through the con troller-rest to control the controller so as to prevent the parts that are controlled by the controller from being called into action.

The present invention is characterized by a difie-rent construction and arrangement of controller-rest governing means, and by provisions for adjustment in connection therewith. .In accordance with one part of the present invention, the said governing means consists in a finger projecting from the controller-rest below the secondary contactmember, and a controller-rest governing-finger occupying a position lower than the secondary contact-member, in which it intersects the forward portion of the path of movement of the controller-rest finger, in

manner to'prevent a change in the operation of the 100m from being called while the fulldiameter feeler action. continues.

. Briefly stated, during the earlier stages of the weft or filling-supply, while the portion of the filling-supply which is presented to at least the primary contact-member is ofv finger into engagement with the controller rest governor, the secondary, asslsting, or coad utor contact-member beglns to cooperate with the controller-rest in the functionsof (1:) measuring the final stages of the weftsnpply, (2) :detecting reduction of the final residue of the predetermined minimum, and (3) through the controller rendering the partsthat are controlled by the latter operative to bri g about a change in the operation of the loom, e

The invention is capable of being reduced to practice in various ways and by various mechanical constructions. 1

In the drawings,

Figure 1 isa plan view of an illustrat ve embodiment of the invention in connection with devices of well-known character for calling a change in the operation of the loom.

Fig. 2 is an end elevation of the outer. or tion of the feeler mechanism of Fig. 1.

Fig. '3 is a front elevation of the parts that are represented in Figs. 1 and 2.

Figs. 4: and 5 are views similar to'Figs. 1 and 2, but illustrating the action at the beatup during the full-diameter stage of the sup- 0 ply of weft or filling contained in the shuttle on the lay.

Figs. 6 and 7 are views in plan and end elevation illustrating the action at the beatup at the minimum stage.

Figs. 8, 9, 10, and 11 are views illustrating details.

Fig; 12 is an end elevation showing a second illustrative embodiment of the invention, on a larger scale.

Fig. 13 is a view showing the controllerrest governor of Fig. 12, detached.

Having reference to the drawings,

The drawings show certain of the usual parts of a loom, including the lay-beama, shuttle-box front-plate b, breast-beam c, weft-fork d, weft-fork slide e, mounted in a'guideway 7 on the breast-beam, and wefthammer 9. At 71. is shown a loom-shuttle occupying the shuttle-box, at i a bobbin contained within the shuttle, and j is the weft or filling that is wound upon and carried by the bobbin. The front wall of the shuttle is slotted as usual, as indicated at h, to admit the working ends of the feelermembers or fingers to the interior of the shuttle to make contact with the surface of the mass of weft or filling. The usual slot in the frontplate, with which the slot h, of the shuttle-wall registers when the shuttle is home within the shuttle-box, is indicated at b;

Having reference to the drawings, and first to Figs. 1 to 11,

7 In the illustrative embodiment that is shown in the said figures the contact-members constituted by the feeler-members or fingers 1 and 2 (shown separately in Figs. '8, 9, 10, 11, are,- for convenience. on the order of those shown and described in U. S. Letters Patent No. 940,600 granted Nov. 16, 1909 upon my application. That is to say,

they are in the form of slides which are mounted side'by side in guides provided in upstanding portion of a small. feeler-stand 32. Substantially as in the said Letters Patent, they are h ld in rearward positions,.normally, by means of expanding spiral springs 31. and 41, surrounding their forwardly-extending stems or shanks 3 and 1, and confined between the upstanding guide-lug 32 at the front end of said feeler-stand and the front ends of the body-portions of the feeler-members or fingers. The said rearward positions are determined through the contact of lateral projections 1",, 2, Figs. 8 :to 11, from the bodies of the feeler-members or fingers with the upstanding lug 32 at the. rear end of the said feeler-stand. As usual in feeler-mechanisms, the rear ends of the feeler-membe-rs or fingers 1 and 2 are designed to enter the shuttle on the lay from the front as the lay goes forward. Both thereof are designed to be acted upon by the weft or filling-mass. In their normal positions the feeler-members or fingers await the pressure or blow of the contents of'the' shuttle against their rear ends. They both are moved forward ashort distance by such pressure or blow.

In the normalv rearward position of the feeler-members or finger 1, 2, the feelermember or finger 1 projects a little farther rearward than the feeler-member or finger 2, as indicated in Figs. 1 and 2. The diffenence is some hat. greaterthan thepredetermined minimum thickness, 2'. 0., the.

thickness of the final remainder of weft or filling on the filling-carrier in the shuttle when the change is called. It corresponds with the bevel, inclination, or slope of the tapering conical tip-end of the filling-mass. Consequently, a cylindrical portion of the wound mass of weft or filling within the shuttle presented to the two feeler-members or fingers at the beatup of the lay will cause the member 1'to begin to move for- 8 and 9) is a two-part finger that is hung v by means ofits body-portion 8 upon a pivotpin 9 projecting transversely from an upstanding portion 10 at the front end of the feeler-m ember 1. Thereby the controllerrest is. connectedvpivotally at its forward end with the, feeler-member 1, and supported at such end. The doavnturned tip 71 of the rear end of the controller-rest lies normally upon the topv surface of the feeler-member 2 at "the rearof the rear end of an opening 5 in the latter feeler-member. By such surface of feeler-member 2 the controller-rest is supported normally at its free end, as in Fig. 2, for instance. Sov long as the'free end of the controller-rest is thus supported, it is locked by the secondary feeler-member '2. When feeler-member 1 is displaced forward relative to feeler-member 2 far enough to carry the tip 71 forward beyond the rear end of opening 5, and into a position over said opening, the controller-rest is unlocked from feeler-member 2. The two parts of the controller-rest overlap each other for portions of their length, and are connected together by means of a clamping screw 72, (shown best in Figs. 8 and 9) the stem of which occupies a longitudinal slot 7 in the rear part of the controller-rest. By means of an adjusting screw 7* working in upstanding lugs with which the two parts of the controller-rest are furnished, the rear part may be adjusted upon and relative to the said body-portion 8, so as to vary the extent to. which the tip 71 project rearward beyond the rear end of the opening 5 in the secondary feeler-member. By this adjustment the extent of relative displacement of feeler-member l with respect to feeler-member 2 necessary to carry tip 71 forward beyond the rear end of opening 5 and thereby unlock the controller from ifeeler-member 2 may be varied. I

The controller 44 consists mainly of a rockshaft that is mounted in bearings'441, 441, provided in connection with the supporting stand 442 on which the small feelerstand 32 is mounted. For cotiperation with controller-rest 7, the outer end of the controller rockshaft has mounted thereon fixedly an arm 13 formed with a-cran'k-pin 11 which lies upon the controller-resti. Through the engagement between the controller-rest and the crankpin the crank-pin 11 is supported and the controller is locked from turning in the direction of the arrow shown in Fig. 1 upon its rockshaft, so long as the controller-rest itself remains looked through the engagement of its tip 71 with the top surface of feeler-member2a The controller operatively' controls j the devices by which a change in the operation of the loom is called, by means of an arm 443 mounted fixedly on the inner end of "the controller rockshaft and provided with theoperation of'the loom. It is --furnished with an engaging portionyshown as a lateral spur 24, for coaction with a suitable striker. In the present instance, as ordinarily is the case in practice, the wefthammer g is utilized as thestriker, it being provided with a shoulder 25 adapted to engage the said spur, tooth, or shoulder, in case the catch or dog should occupy its lowered position as the weft-hammer goes forward, for the purpose of pushing the catch or dog and arm forwardjand thereby bringing about the change inthe operation of the 100m.

shoulder 25 of the weft-hammer.

' "While the controller-rest remains locked by the secondary feeler-member, that is to catch.' The weight of the catch-21 and of v crank-arms 443' and 13, and the co6perating tension of a spring 33 connected with the controller rockshaft, tend to turn the controller in the directionindicated by the arrow thereon in' Fig. 1, and operate to turn the controller in such directionfwhen it is free to turn, to thereby lower a the catch 21 into position to be engaged" by the An'elongated arch or bail 7311Sing from the controller-rest 7 extends above and over the crank-pin 11*of the controller, for convenience in keeping the two parts in working relations with each other, and also for enabling the weaver to lift the controllerrestso as towithdraw its tip 71 from the opening5, when it is desired to do so manually, simply by taking hold of some convenient part of the controller and rocking the latter in the direction opposite to that indicated by the arrowin Fig. 1.

' The particular character and construction of the controller and the devices controlled thereby for callinga change in the operation of a loom are not material, so far as the invention is concerned.

The controller-rest governor 15 of this embodiment is a finger that is fixed to the rear portion of the stand 32' and projects rearwardly therefrom below feeler-member 2. ,For coiiperation with the controllerrest governor, the controller -rest is furnished with afinger 14, which projects downfrom the controller-rest below the secondary feeler-member 2, and in line with the rear end of said stop-finger 15, at a short distance behind the said end. i The acting portion ofthe controller-rest governing finger15 occupies a position lower than the secondary feeler member in which it intersects the forward portion of the path of movement of the-controller-rest finger '14. In this embodiment the latter is formed upon the tip 71'of the controllerrest and extends down through the opening 5 in the secondary feeler-member. To enable the time of action of the governing finger to be regulated so that engagement of finger 15' with finger 14 shall take place at the desired point in the movement of feeler-memher 1 forward, the governing finger 15 is made adjustable forwardly 'and rearwardly. To this end, its shank occupies a hole in the rear upstanding portion of'feeler-stan'd 32,

- and is made fast therein by meansof a clamping screw 15*. This mode of mounting the finger 15 provides for adjustment of the same so as to locate its working end in proper position, i 7

Having reference-now to the operation of the devices which have been described, and the principles which are involved in such operation,

As is well known, the weft or filling yarn .carriedby a filling-carrier occupying a V a delivery-eye with which the shuttle is furnished near the adjacent end thereof. To

, provide for the yarn being thus drawn off past the freeend or tip of the filling-carqof the filling-carrier. 30.

rier, weft 'orfilling is wound upon fillingcarriers with a. so-called cone-wind, as shown in various views of the drawing, namely in successive layers resembling conical or tapering shells, one outside another, until the required length of wound mass is produced. The said wound massis cylindrical exteriorly for a ortion of itslength, and has a conical end acing toward the tip See Fig. 4. When the spiral coils or turns constituting the exposed tapering layer of the cone-shaped end are drawn off, another similar layer is uncovered, and so on. The progressive withdrawal of the said layers shortens the wound mass progressively until the yarn has been v paid oil from the filling-carrier back to the head or base-end of the latter.

When the shuttle is supplied with a filled filling-carrier, a portion of large diameter of the wound mass of weft or filling is pressed against the feeling ends of the two feedermembers 1 and 2 at every feeling action, as illustrated in Fig. 4, during the preliminary stage of the weft or filling-supply. This preliminary stage, which I call the full-diameter stage, is a stage of long duration. It continues from the time when a fresh filling-carrier loaded nearly to its tip with weft or filling is brought into action, to the time when the mass has become reduced in length so that the base of the cone 1 or taper of the remainder or residue is just about to be caused to extend to a point which as the lay goes forward will touch the feeling end of the feeler-member 1. The feelermembers 1 and 2 are located in such a position in the loom that they feel against the filling-mass at the usual place for feeler action, namely close to the enlarged head or base of the filling-carrier. Consequently, a very large proportion of the filling-mass will have been paid out before the cone or taper of the remainder or residue is exposed to feeler-member 1.

In each feeling action during which the .sary.

full diameter or substantially the 'full diameter of the filling-mass, is presented so as to move its tip 71 forward past the rear end of opening 5, thereby unlocking the controller-rest from feeler-member 2. This would permit the controller to operate to call the change in the operation of the loom if provision were not made thereagainst. Such change would be unneces- A change called at atime when, the filling-mass occupying the shuttle is of any- .thing like the proportions of that shown by Figs'l and 4, or in fact at anytime during the full-diameter stage, would be objectionable and undesirable. Accordingly, during the full-diameter stage, the controller-rest governor 15 is in action as shown in Fig. 5. A

' full or substantially full-diameter of weft or filling-supply operates at, thebeat-up of, the lay -to drive fBQlBPIIlBHlbGl 1 and the controller-rest 7 so far forward that the finger 14: strikes against the controller-rest governor 15 as shown in the view. Consequently, the controller-rest, if down, is raised and when raised is locked in an elevated position with the engaging portion of the catch or dog 21 above and clear of the path of the'shoulder25 of the forwardly advancing weft-hammer. .j V 7 As a result of the action of the controllerrest governor during the full-diameter stage, any differential forward movement of' the feeler-member 1 relative to feeler-member 2 is. without either useful or harmful result or consequence, and is taken care of; by means ,of'the controller-rest governor so that the controller-rest is given an elevated position.

When the weft or filling begins to pay out from the portion of the wound mass that makes contact with feeler-member 1, the extent to. which such. member is pushed forward will diminish. and the difference between the strokes of the two feeler-members will decrease until the tapered residue stage in the consumption or paying-out of the weft or filling from the shuttle is reached. In this stage, at the beat-up of the lay, the largest diameter of the residue or remainder of the filling-mass is presented against the feeler-member 2, while the conical or tapering portion of the said residue or remainder is presented against the feeler-member 1. A smaller diameter, therefore, is presented to the feeler-member 1 than the diameter which is presented to the feeler-member 2. Because of the said difference in diameters during this stage the rear end of feelermember 1 is arranged to project normally a corresponding distance farther rearward 2, as stated hereinbefore, in order that during the tapered residue stage, as the filling-mass be driven forward in unison, or practically so, by the pressure of the filling-mass against their feeling ends, with the tip of controllerrest 7 lying upon the top surface of the feeler-member2 at the rear of opening 5 and supported thereby. While this continues, the controller is locked by feeler-member 2 in the position in which it supports the catch 21 out of the path of the shoulder 25 of the weft-hammer. At a certain point during this stage, the progressive decrease in the diameter of the portion of the filling-mass which acts against the feeler-member 1 will reduce the extent of the forward movement of said feeler-member and the controllerrest 7 pivoted thereto,so that the finger 14 of the controller-rest does not touch the controller-rest governor 15. From that time on the controller-rest governor does not act and is not needed to act.

As the filling continues to be drawn off from the tapered residue the various diameters of the latter become smaller and the forward. movement given to the feeler-members at'every feeling actionfurther diminishes, that of the feeler-member 2 morerapidly than that of feeler-member l. A measuring action begins just as soon as the extent of the forward movement of feelermember 2 begins to grow less than that of feeler-member 1. It involves a resumption of differential movement of the two feelermembers, the feeler-member 1 leading the feeler-member 2 as the two feeler-members are driven forward at each feeling action.

.This differential movement produces at each successive beat-up a movement of the tip 71 of controller-rest 7 forward upon the top surface of feeler-member 2, and toward the edge of the opening 5. The relative movement increases in extent at each successive beat-up,-in proportion as the remaining filling diminishes in diameter, and consequently the tip 71 approaches closer and closer toward the edgeof the opening 5, until finally, when the relative movementiof feeler-member 1 forward with respect to feeler-member 2 carries the said tip 71 of the controllerrest 7 off the edge of the opening 5, as in Figs. 6 and 7, the controller-rest and con troller will be unlocked, and under the influence of the spring 33 and gravity the controller will rock so as to place the engaging portion 24 0f catch 21 in position to be engaged by shoulder 25 of the weft-hammer. Thereby the said catch and the arm 23 will be operated so as to bring about the prear-v ranged change in the operation of the loom.

Through adjustment of the tip-carrying part of the controller-rest by means of screw c so as to causetip 71 tolap rearward of the rear edge of opening 5"more or. less, the release of the controller-rest may be causedto take place sooner or later, according as it i is desired to leave more or less filling upon' the filling-carrier when the changeis called.

Ordinarily in the operation of a loomhaving the just described feeler mechanism ap-V plied thereto, while the lay is rearward the weft-hammer also occupies a rearward position with the shoulder 25 a short distance,

somewhere about aquarter of an inch, to the rear of the engaging portion. 24 of the catch 21. The weft-hammer remainsin this posi approaches front center thevfilling-mass con-' tained in the shuttle in the shuttle-,boxxof the lay strikes the rearends of the feelermembers and drives them forward, the contion while the lay goes forward. As the lay tact with the full diameter of filling-mass taking place under the usual adjustments 1 when the lay is somewhere about half an inch or three-eighths of an inch back from the most forward point reached by it. When the lay is about a quarter of an inch back 1 from the said most forward point, the weft hammer begins tomove forward. The contact of the finger 1 1 of the controller-rest with the fixed stop 15 in the final portion of the movement of the lay throws the 0011- troller-rest upward, gives a quick turn to the controller, and also throws the catch 21 up- I ward, and; the continued forward movement of the weft-hammer carries the shoulder 25 forward under the engaging portion'2 li of the catch 21 while the catch is thus elevated. As the-weft-halnmer goes forward under the engaging portion 24 the top of the wefthammer behind the shoulder 25 bears against the underside of the said engaging portion so as to support the catch until the rearward movement of the weft-hammer withdraws the shoulder 25 out from under the spur.

'The shoulder 25 passes forward under the engaging portion 24 ofthe catch after the finger 1 1 has passed forward upon the con},

troller-rest'governor 15 and while it is either resting upon the top of the said governor or poised by momentum slightly above the The weft-hammer follows the lay same. rearward, but the top of the weft-hammer does not pass out from under the spur of the catch, and continues to support the catch and the controller, until the lay has moved rearward a considerable distance. j

The controller-rest governor 15 has two functions.' One thereof is'to prevent the feeler devices from acting to call a change in the operation of'the loom at any time during the full diameter stage (shown in Figs. 1 to 5) of the-filling-mass on the carrier in the shuttle. The other function is to raise the controller-rest sufiiciently high as it goes forward with the feeler-member .1 to insure that, as the saidfeeler-member and the controller-rest are driven rear-ward again by the action of the spring 31 as the lay and shuttle retreat re'arwardly, the tip 71 of the controller-rest shall land-on the top surface of the feeler-member 2 at the rear of the opening 5, and not'drop into the said opening.

In the embodiment-shown in Figs. 12 and 13,- the finger 141, that cooperates with the controller-rest governor, is provided in connection with the body-portion 8 of the controller-rest, and projects downward there- ]from at a point'som'e' distance in front of the opening in the feeler-member 2. The controller-rest governor in this embodiment is a substantially horizontal finger 151 having its frontend bolted to the under side of the forwardly projecting portion of the feelerstand 32. The said finger is located below the level of the feeler-members. The adj ust= ment of the working position of the con-- troller-rest. governor forwardly and rear- I wardly is provided for by furnishing the ledge 4542*" of supporting-stand 442.

forward end of the saidygovernor with an elongatedslot 151 accommodating the stem of the bolt or screw 151 which fastens the said finger to the controller-stand.

Other changes in the'form, etc, of the parts may be made in practice. The specific mode of operation may vary more orless in practice.

The adjustment of the governing finger forward or rearward in the loomva'ries the stage in the progressive decrease in diameter member, a secondary feeler member controlling said controller-rest, a finger normally projecting from sa1d controller-rest below the secondary feeler-member, and a controller-rest-governmg finger occupying a position lower than the secondary feeler-member in which it intersects the forward portion of the path of movement of said controller-rest finger.

2'. Weft-feeler mechanism comprising devices forcallinga change, a controller for such devices, a primary feeler-member, a

controller-rest actuated by the said feelermember, a secondary feeler-member controlling said controller rest, a finger normally projecting from said controller-rest 7 downward below the secondary feeler-memher, and a fixed controller-rest-governing finger occupying a position inwhich its acting rear end is lower than the secondary feeler-member and intersects the forward portion of the path of movement of said controller-rest finger.

3. Weft-feeler mechanism comprising de:

vices for calling a change, a controller for such devices, a primary feeler-member, a controller-rest actuated by the said feelermember, a secondary feeler-member controlling said controll'er-rest, and a controller-rest governor having means for adjusting its time of action 4. Weft-feeler mechanism comprising devices for calling a change, a controller for such devices, a' primary feeler-member, a controller-rest actuated by the said feeler member, ,a secondary feeler-member con trolling said controller-rest, and a controllerrest-governor having means for adjusting its Working position forwardly and rearwardly.

5. Weft-feeler mechanism comprisingdevices for calling a change, a controller for such devices, weft-feeler-means, a controller rest controlled by the said feeler-means, and a contro-llenrest-governor which renders said devices inoperative to call a change troller-rest governor having means for adjusting its Working position forwardlyand rearwardly.

7. Weft-feeler mechanism comprising de vices for calling a change, a controller. for

such devices, a primary feeler-member, 'a

controller-rest actuated by the said feelermember, a secondary feeler-member controlling said controller-rest, means to adjust the said control so as to determine the minnnu'm resldue to be left upon the fillingcarrier, and a controller-rest-governor hav- 7 ing provisions for adjusting its time of action.

In testimony whereof I affix my signature in presence of two witnesses.

. SIMEON S. JACKSON. lVitnesses:

CHAs. F. RANDALL, ELLEN 0. SPRING.

Copies of this patent maybe obtained-tor five cen-taeach, by addressing thc "Gommi ssmzier ofl'lte'zit,

Washington, D. 0. V 

